2) ring gasket according to api 6a-20th api 6a - type - 6bx 13.8 mpa (2000 psi) size od c e1 g k t j1 j4 r bc n h ring number bx 26 3/4˝ 1040 6 21.4 768.33 805 126.3 835.8 9.7 16 952.5 20 48 167 30˝ 1120 6 23 862.3 908 134.2 931.9 17.5 16 1039.80 32 45 303 unit : mm note : 1) tolerance according to api 6a-20th 2) …
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